var createError = require('http-errors');
var express = require('express');
var path = require('path');
var cookieParser = require('cookie-parser');
var logger = require('morgan');

var indexRouter = require('./routes/index');
var usersRouter = require('./routes/users');
var dataIndexRouter = require('./routes/dataIndex');

var proxyMiddleWare = require("http-proxy-middleware");

// var checklogin = require("login");

var app = express();

//这里使用代理 1
var proxyPath = "http://api.zhuishushenqi.com";//目标后端服务地址(公司同事电脑地址)
var proxyOption ={target:proxyPath,changeOrigoin:true,pathRewrite:{'^/api':'/'}};
app.use("/api",proxyMiddleWare(proxyOption));

var proxyPath1 = "http://chapter2.zhuishushenqi.com/chapter/http://vip.zhuishushenqi.com";
var proxyOption1 = {target:proxyPath1,changeOrigoin:true,pathRewrite:{'^/chapterapi':'/'}}
app.use('/chapterapi',proxyMiddleWare(proxyOption1));

// view engine setup
app.set('views', path.join(__dirname, 'views'));
app.set('view engine', 'jade');

app.use(logger('dev'));
app.use(express.json());
app.use(express.urlencoded({ extended: false }));
app.use(cookieParser());
app.use(express.static(path.join(__dirname, 'public')));

app.all('*', function (req, res, next) {
  res.header('Access-Control-Allow-Origin', '*');
  //Access-Control-Allow-Headers ,可根据浏览器的F12查看,把对应的粘贴在这里就行
  res.header('Access-Control-Allow-Headers', 'Content-Type');
  res.header('Access-Control-Allow-Methods', '*');
  res.header('Content-Type', 'application/json;charset=utf-8');
  next();
});

// app.use(checklogin);

app.use('/data', dataIndexRouter);

// catch 404 and forward to error handler
app.use(function(req, res, next) {
  next(createError(404));
});

// error handler
app.use(function(err, req, res, next) {
  // set locals, only providing error in development
  res.locals.message = err.message;
  res.locals.error = req.app.get('env') === 'development' ? err : {};

  // render the error page
  res.status(err.status || 500);
  res.render('error');
});

module.exports = app;
